:root {
    --bg: #070b17;
    --bg-light: #0d1530;
    --panel: #111a36;
    --stroke: #27375f;
    --text: #edf2ff;
    --muted: #95a4cb;
    --accent: #6f8cff;
    --ok: #34d39a;
    --danger: #ff6f91;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    min-height: 100vh;
}

nav {
    background: linear-gradient(180deg, rgba(13, 21, 48, 0.95), rgba(7, 11, 23, 0.95));
    padding: 1.5rem 1rem;
    border-right: 1px solid var(--stroke);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

nav h1 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

nav a {
    display: block;
    padding: 0.7rem 1rem;
    background: rgba(22, 36, 71, 0.5);
    border-radius: 8px;
    color: var(--text);
    text-decoration: none;
    transition: all 0.2s;
    border: 1px solid transparent;
}

nav a:hover {
    background: rgba(111, 140, 255, 0.1);
    border-color: var(--accent);
}

nav a.active {
    background: var(--accent);
    color: white;
}

main {
    padding: 2rem;
    overflow-y: auto;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 2rem;
}

.header button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
}

.panel {
    background: linear-gradient(180deg, rgba(17, 26, 54, 0.9), rgba(13, 21, 48, 0.9));
    border: 1px solid var(--stroke);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text);
}

input, textarea, select {
    width: 100%;
    padding: 0.7rem;
    background: rgba(12, 20, 48, 0.8);
    border: 1px solid var(--stroke);
    border-radius: 8px;
    color: var(--text);
    font-family: inherit;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 8px rgba(111, 140, 255, 0.3);
}

.btn {
    background: linear-gradient(180deg, var(--accent), #5070d8);
    color: white;
    border: none;
    padding: 0.7rem 1.2rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(111, 140, 255, 0.4);
}

.btn-sm {
    padding: 0.5rem 0.8rem;
    font-size: 0.9rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--panel);
    border: 1px solid var(--stroke);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.2s;
}

.card:hover {
    border-color: var(--accent);
    box-shadow: 0 8px 20px rgba(111, 140, 255, 0.15);
}

.card h3 {
    margin-bottom: 0.5rem;
}

.card p {
    color: var(--muted);
    font-size: 0.95rem;
}

.ticket-shell {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 1rem;
    min-height: 70vh;
}

.sidebar {
    background: var(--panel);
    border: 1px solid var(--stroke);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 1rem;
    border-bottom: 1px solid var(--stroke);
    font-weight: 600;
    background: rgba(111, 140, 255, 0.05);
}

.sidebar-content {
    overflow-y: auto;
    flex: 1;
}

.sidebar-item {
    padding: 1rem;
    border-bottom: 1px solid rgba(39, 55, 95, 0.5);
    cursor: pointer;
    transition: all 0.2s;
}

.sidebar-item:hover {
    background: rgba(111, 140, 255, 0.08);
}

.sidebar-item.active {
    background: rgba(111, 140, 255, 0.15);
    border-left: 3px solid var(--accent);
}

.chat-area {
    background: var(--panel);
    border: 1px solid var(--stroke);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    padding: 1rem;
    border-bottom: 1px solid var(--stroke);
    background: rgba(111, 140, 255, 0.05);
}

.messages {
    padding: 1rem;
    overflow-y: auto;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    padding: 1rem;
    border-radius: 8px;
    background: rgba(22, 36, 71, 0.5);
    border-left: 3px solid var(--stroke);
}

.message.own {
    align-self: flex-end;
    background: rgba(111, 140, 255, 0.15);
    border-left-color: var(--accent);
    max-width: 80%;
}

.message-header {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

.message-content {
    word-wrap: break-word;
    white-space: pre-wrap;
}

.composer {
    padding: 1rem;
    border-top: 1px solid var(--stroke);
    display: flex;
    gap: 0.5rem;
}

.composer textarea {
    flex: 1;
    min-height: 60px;
    resize: none;
}

.profile-panel {
    background: var(--panel);
    border: 1px solid var(--stroke);
    border-radius: 12px;
    padding: 1.5rem;
}

.profile-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 1rem;
    border: 2px solid var(--accent);
}

.profile-info {
    display: grid;
    gap: 1rem;
}

.info-row {
    display: grid;
    grid-template-columns: 100px 1fr;
}

.info-label {
    color: var(--muted);
    font-size: 0.9rem;
}

.badge {
    display: inline-block;
    padding: 0.3rem 0.6rem;
    background: rgba(111, 140, 255, 0.2);
    border: 1px solid var(--accent);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--accent);
}

.badge.success {
    background: rgba(52, 211, 154, 0.2);
    border-color: var(--ok);
    color: var(--ok);
}

.badge.danger {
    background: rgba(255, 111, 145, 0.2);
    border-color: var(--danger);
    color: var(--danger);
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--muted);
}

.empty-state h2 {
    margin-bottom: 1rem;
}

@media (max-width: 1024px) {
    .ticket-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        max-height: 300px;
    }
}

@media (max-width: 768px) {
    .layout {
        grid-template-columns: 1fr;
    }

    nav {
        flex-direction: row;
        overflow-x: auto;
        border-right: none;
        border-bottom: 1px solid var(--stroke);
    }
}